/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package ru.ssau.customerManagement.servlets;

import java.io.IOException;
import java.util.List;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import ru.ssau.customerManagement.controller.XMLHelper;
import ru.ssau.customerManagement.ejb.ControllerBean;
import ru.ssau.customerManagement.model.entities.CustomerLocation;

/**
 *
 * @author illabefat
 */
@WebServlet(name = "CustomerLocationsServlet", urlPatterns = {"/CustomerLocationsServlet"})
public class CustomerLocationsServlet extends HttpServlet {

    private static final Logger logger = LoggerFactory.getLogger(CustomerLocationsServlet.class);
    
    private ControllerBean controllerBean;

    public CustomerLocationsServlet() {
        InitialContext ctx;
        try {
            ctx = new InitialContext();
            controllerBean = (ControllerBean) ctx.lookup("java:global/EnterpriseApplication1/EnterpriseApplication1-ejb/ControllerBean");
        } catch (NamingException ex) {
            logger.error("Some error ocurred with JNDI", ex);
            throw new RuntimeException("Some error ocurred with JNDI", ex);
        }
    }
    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try
        {
            List<CustomerLocation> locations = controllerBean.getAllLocations();
            String customerLocations = XMLHelper.jaxbToString(new CustomerLocation.CustomerLocationsList(locations));
            request.getSession().setAttribute("customerLocations", customerLocations);
            response.sendRedirect("customerLocations.jsp");
        }
        catch (Exception e)
        {
            request.getSession().setAttribute("error", e.getMessage());
            response.sendRedirect("error.jsp");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
